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4820-00-904-1527

Find complete technical information, availability, and procurement data for: 4820-00-904-1527

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4820-00-904-1527
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-904-1527
Item Name Code
05488
Assigment Date
01/01/1960 (66 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

right-hand 1st end thread direction, 0.750 inches 1st end nominal pipe size accommodated, 0.750 inches 2nd end nominal pipe size accommodated, right-hand 2nd end thread direction, poppet flow control device

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Nominal Pipe Size Accommodated
0.750 inches 1st end
Nominal Pipe Size Accommodated
0.750 inches 2nd end
Thread Direction
right-hand 1st end
Thread Direction
right-hand 2nd end
Flow Control Device
poppet
Disk Loading Method
spring
Connection Style
plain (pipe) 1st end
Connection Style
plain,optional end(pipe) 2nd end
Valve Operation Method
automatic
Connection Type
threaded external pipe 1st end
Connection Type
threaded internal pipe 2nd end
Features Provided
valve stem lock shield
Thread Quantity Per Inch
14 1st end
Thread Quantity Per Inch
14 2nd end
Nominal Thread Size
0.750 inches 2nd end
Nominal Thread Size
0.750 inches 1st end
Opening Pressure Setting
300.0 pounds per square inch
Material
copper alloy body
Material
copper alloy stem
Material
nickel alloy flow control device
Material
nickel alloy seat
Style Designator
angle
Thread Series Designator
npt 2nd end
Thread Series Designator
npt 1st end

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
FIGM20PR Safety Relief Valve
M20PR Safety Relief Valve

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4820-00-904-1527?
The FSCG of the NSN 4820-00-904-1527 is 4820
Does the NSN 4820-00-904-1527 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-904-1527 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 4820-00-904-1527 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-904-1527 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 4820-00-904-1527 was assigned to the Federal Catalog?
It was assigned 66 years ago, on Fri, Jan 1, 1960

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